CN102412085B - Double-break electrical contact device and isolating switch using same - Google Patents
Double-break electrical contact device and isolating switch using same Download PDFInfo
- Publication number
- CN102412085B CN102412085B CN201010292969.2A CN201010292969A CN102412085B CN 102412085 B CN102412085 B CN 102412085B CN 201010292969 A CN201010292969 A CN 201010292969A CN 102412085 B CN102412085 B CN 102412085B
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- guide
- double
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/10—Adaptation for built-in fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/12—Adaptation for built-in fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
Abstract
The invention provides a double-break electrical contact device, comprising a device body, a driving component, a first static contact, a second static contact, a first moving contact, a second moving contact, a first guide mechanism and a second guide mechanism, wherein the driving component is connected to the device body through a main shaft; the first static contact and the second static contact, the first moving contact and the second moving contact, and the first guide mechanism and the second mechanism are respectively symmetrical about the main shaft; and the driving component can drive the first moving contact and the second moving contact to pivotally synchronously rotate relative to the device body under the guidance of the first guide mechanism and the second guide mechanism respectively, so that the first moving contact and the second moving contact are respectively connected with or disconnected from the first static contact and the second static contact. The invention has the advantage that synchronous breaking of the moving contacts is realized, thereby prolonging the service life of the contact device.
Description
Technical field
The present invention relates to a kind of contact device, particularly relate to a kind of symmetrical Double-break electrical contact for fuse type disconnector.In addition, the invention still further relates to a kind of fuse type disconnector that adopts this symmetry Double-break electrical contact.
Background technology
Fuse type disconnector can be replacing fuse protection is provided.In the time that the driving stage of isolating switch drives the contact apparatus of contact in extremely to open position, fuse must all be isolated in both sides.For this reason, most of existing fuse type disconnectors all adopt double break electrical contact, wherein the double break electrical contact of a type is called " rotary-type ", its moving contact, connecting rod and two quadric chains of drive rod formation are also shared one and are fixedly connected with, and are independently fixedly connected with thereby drive described moving contact to rotate two other.Such double break electrical contact has moving contact and contacts reliable advantage with fixed contact.But be fixedly connected with because two quadric chains share one, therefore the driving angle difference of two quadric chains causes moving contact non-synchronously to be driven.In the time that fuse type disconnector disconnects circuit, between the moving contact of fuse type disconnector and fixed contact, generation is there is to the electric arc of thousands of degree high temperature.If double break electrical contact can not synchronously disconnect, electric arc will obviously be greater than to the erosion that wherein a pair of moving contact and fixed contact cause that another is right.
Summary of the invention
The object of the invention is to, a kind of contact device that can synchronously disconnect is provided and adopts the isolating switch of this contact device.
Described object realizes by a kind of Double-break electrical contact of the present invention.Described Double-break electrical contact, comprises device body, actuator, the first fixed contact, the second fixed contact, the first moving contact, the second moving contact, the first guide and the second guide, and wherein said actuator is connected to described device body by main shaft.Described the first fixed contact and described the second fixed contact, described the first moving contact and described the second moving contact and described the first guide and described the second guide are respectively about described main shaft symmetry.Described actuator can drive described the first moving contact and described the second moving contact under the guiding of described the first guide and described the second guide, pivotally synchronously to rotate with respect to described device body respectively, thereby closed or disconnect with described the first fixed contact and described the second fixed contact respectively.
According to one aspect of the present invention, described the first guide comprises the first guide rail and the first guide groove, and described the second guide comprises the second guide rail and the second guide groove.
According to another aspect of the present invention, described the first guide rail and described the second guide rail are positioned on described device body, and described the first guide groove and described the second guide groove lay respectively on described the first moving contact and described the second moving contact.
According to one side more of the present invention, described the first moving contact and described the second moving contact are extension.Described the first guide groove and described the second guide groove lay respectively at the middle part of described the first moving contact and described the second moving contact, and identical with the bearing of trend of described the first moving contact and described the second moving contact.
According to another aspect of the present invention, described Double-break electrical contact comprises the first conductor and the second conductor.One end of described the first moving contact and described the second moving contact is pivotally connected respectively described the first conductor and described the second conductor, and the other end is can be respectively closed or disconnect with described the first fixed contact and described the second fixed contact.
According to another aspect of the present invention, described Double-break electrical contact comprises first connecting rod and second connecting rod.One end of described first connecting rod and described second connecting rod is pivotally connected respectively described actuator in the first axle and the second axle.The other end of described first connecting rod inserts described the first guide rail and described the first guide groove simultaneously, and the other end of described second connecting rod inserts described the second guide rail and described the second guide groove simultaneously.
According to another aspect of the present invention, described the first guide rail and described the second guide rail lay respectively at the both sides of described main shaft, and upwards in alignment with described main shaft in the footpath of described main shaft.
According to another aspect of the present invention, between described the first fixed contact and described the second fixed contact, connect a fuse.
According to another aspect of the present invention, described the first axle and described the second axle are positioned at the both sides of described main shaft, and with described main shaft in a plane.
Described object also realizes by a kind of isolating switch of the present invention.Described isolating switch has above-mentioned Double-break electrical contact.
The invention has the advantages that: realized the synchronous disconnection of moving contact by parts and guide are set symmetrically, thereby ensure the even erosion of electric arc to contact, extended useful life of contact apparatus and simple in structure, also realized reliable contact simultaneously.
Brief description of the drawings
In conjunction with the following drawings, it is clearer that the features and advantages of the present invention will become, and wherein identical symbol represents identical parts or device:
Fig. 1 has shown the contact apparatus of the present invention 1 in closure state;
Fig. 2 has shown the contact apparatus of the present invention 1 of the state that mediates;
Fig. 3 has shown the contact apparatus of the present invention 1 in off-state.
Embodiment
Fig. 1 has shown the contact apparatus of the present invention 1 in closure state, and it comprises device body 12, actuator 11, the first fixed contact 21, the second fixed contact 31, the first moving contact 22 and the second moving contact 32.Device body 12 is for example the housing of contact apparatus 1, and conventionally forms through injection moulding.The actuator 11 that is for example cam is pivotally connected to the middle part of device body 12 by main shaft 17, and is made up of insulating material, thereby has ensured the electric insulation between the first moving contact 22 and the second moving contact 32.The first fixed contact 21 and the second fixed contact 31, the first moving contact 22 and the second moving contact 32 and the first guide and the second guide are respectively about main shaft 17 symmetries.The driving mechanism (not shown) that separates the switch drive utmost point is clockwise to driving actuator 11 open position of Fig. 3 from the make position of Fig. 1, therebetween by the centre position through Fig. 2.In the time of closed contact apparatus 1, rotate counterclockwise actuator 11, and pass through in turn the position of Fig. 3 to Fig. 1.The rotation of actuator 11 will drive first connecting rod 15 and second connecting rod 16, and first connecting rod 15 and second connecting rod 16 will drive respectively the first moving contact 22 and the second moving contact 32 to rotate with respect to device body 12, thereby make the first moving contact 22 and the first fixed contact 21 closures or disconnect, and make the second moving contact 32 and the second fixed contact 31 closures or disconnect.For two pairs of moving contacts and fixed contact are synchronously disconnected, the bilateral symmetry of actuator 11 the first guide and the second guide be set, make in the time that actuator 11 rotates, the first guide and the second guide can synchronously guide the first moving contact 22 and the second moving contact 32 almost simultaneously closed or disconnect with the first fixed contact 21 and the second fixed contact 31 respectively.The first guide comprises the first guide rail 13 and the first guide groove 24, and described the second guide comprises the second guide rail 14 and the second guide groove 34.
One end of first connecting rod 15 pivotally connects actuator 11 in the first axle 18, and one end of second connecting rod 16 pivotally connects actuator 11 in the second axle 19.The other end of first connecting rod 15 and second connecting rod 16 has respectively axially extended two pins 25 and two pins 35 along main shaft 17 in its both sides.Two pins 25 of first connecting rod 15 insert the first guide rail 13 and the first guide groove 24 simultaneously, and can in the first guide rail 13 and the first guide groove 24, slide simultaneously.The pin 35 of second connecting rod 16 inserts the second guide rail 14 and the second guide groove 34 simultaneously, and can in the second guide rail 14 and the second guide groove 34, slide simultaneously.Now, the first axle 18 and the second axle 19 are positioned at the both sides of main shaft 17, and the axis of the first axle 18 and the second axle 19 and the axis of main shaft 17 are all the time in a plane.The first guide rail 13 and the second guide rail 14 are positioned on device body 12, and are positioned at the both sides of main shaft 17.In the footpath of main shaft 17 upwards, the first guide rail 13, the second guide rail 14 and main shaft 17 form straight line.The first guide rail 13 and the second guide rail 14 are arranged symmetrically with respect to main shaft 17, make to drive the synchronously motion in the direction of described straight line of the first moving contact 22 and the second moving contact 32 with respect to actuator 11, first connecting rod 15 and the second connecting rod 16 of main shaft 17 symmetries equally.The first guide groove 24 and the second guide groove 34 lay respectively at the middle part of the first moving contact 22 and the second moving contact 32, and wherein the first moving contact 22 and the second moving contact 32 are extension.The bearing of trend of the first guide groove 24 and the second guide groove 34 is identical with the bearing of trend of the first moving contact 22 and the second moving contact 32.
According to one embodiment of the present invention, the first fixed contact 21 and the second fixed contact 31 are fixed to device body 12, and connect a fuse between the first fixed contact 21 and the second fixed contact 31.
According to one embodiment of the present invention, the first conductor 23 is pivotally connected with one end of the first moving contact 22, and the second conductor 33 is pivotally connected with one end of the second moving contact 32.The other end of the first moving contact 22 can or disconnect with the first fixed contact 21 closures, and the other end of the second moving contact 32 can the closed or disconnection with the second fixed contact 31.
It will be understood by those skilled in the art that also can be according to driving actuator 11 to change to open position or change to make position from open position from make position with direction contrary in above-mentioned execution mode.
Although more than shown embodiments of the present invention, described execution mode is not intended to show all possible form of the present invention.In addition, the content in this specification is descriptive, and nonrestrictive.Those skilled in the art can make variations and modifications to the content of this specification, and do not depart from the scope of purport of the present invention and claim.
Claims (8)
1. a Double-break electrical contact, comprise device body (12), actuator (11), the first fixed contact (21), the second fixed contact (31), the first moving contact (22), the second moving contact (32), the first guide and the second guide, wherein said actuator (11) is connected to described device body (12) by main shaft (17); Described the first fixed contact (21) and described the second fixed contact (31), described the first moving contact (22) and described the second moving contact (32) and described the first guide and described the second guide are respectively about described main shaft (17) symmetry; Described actuator (11) can drive described the first moving contact (22) and described the second moving contact (32) under the guiding of described the first guide and described the second guide, pivotally synchronously to rotate with respect to described device body (12) respectively, thus or disconnection closed with described the first fixed contact (21) and described the second fixed contact (31) respectively; Described the first guide comprises the first guide rail (13) and the first guide groove (24), and described the second guide comprises the second guide rail (14) and the second guide groove (34), it is upper that wherein said the first guide rail (13) and described the second guide rail (14) are positioned at described device body (12), and described the first guide groove (24) and described the second guide groove (34) lay respectively on described the first moving contact (22) and described the second moving contact (32).
2. Double-break electrical contact as claimed in claim 1, is characterized in that: described the first moving contact (22) and described the second moving contact (32) are extension; Described the first guide groove (24) and described the second guide groove (34) lay respectively at the middle part of described the first moving contact (22) and described the second moving contact (32), and identical with the bearing of trend of described the first moving contact (22) and described the second moving contact (32).
3. Double-break electrical contact as claimed in claim 2, is characterized in that: described Double-break electrical contact (1) comprises the first conductor (23) and the second conductor (33); One end of described the first moving contact (22) and described the second moving contact (32) is pivotally connected respectively described the first conductor (23) and described the second conductor (33), and the other end is can be respectively closed or disconnect with described the first fixed contact (21) and described the second fixed contact (32).
4. Double-break electrical contact as claimed in claim 2, is characterized in that: described Double-break electrical contact (1) comprises first connecting rod (15) and second connecting rod (16); One end of described first connecting rod (15) and described second connecting rod (16) is pivotally connected respectively described actuator (11) in the first axle (18) and the second axle (19), the other end of described first connecting rod (15) inserts described the first guide rail (13) and described the first guide groove (24) simultaneously, and the other end of described second connecting rod (16) inserts described the second guide rail (14) and described the second guide groove (34) simultaneously.
5. Double-break electrical contact as claimed in claim 4, it is characterized in that: described the first guide rail (13) and described the second guide rail (14) lay respectively at the both sides of described main shaft (17), and upwards in alignment with described main shaft (17) in the footpath of described main shaft (17).
6. Double-break electrical contact as claimed in claim 2, is characterized in that: between described the first fixed contact (21) and described the second fixed contact (31), connect a fuse.
7. Double-break electrical contact as claimed in claim 4, is characterized in that: described the first axle (15) and described the second axle (16) are positioned at the both sides of described main shaft (17), and with described main shaft (17) in a plane.
8. an isolating switch, is characterized in that: described isolating switch has the Double-break electrical contact as described in any one claim in claim 1 to 7.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010292969.2A CN102412085B (en) | 2010-09-20 | 2010-09-20 | Double-break electrical contact device and isolating switch using same |
| DE102011078846A DE102011078846B4 (en) | 2010-09-20 | 2011-07-08 | Double contact piece device for power interruption and circuit breaker using the device in question |
| FR1102278A FR2965094B1 (en) | 2010-09-20 | 2011-07-21 | DEVICE WITH DUAL CONTACT PIECE FOR CURRENT INTERRUPTION AND DISCONNECT USING THE DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010292969.2A CN102412085B (en) | 2010-09-20 | 2010-09-20 | Double-break electrical contact device and isolating switch using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102412085A CN102412085A (en) | 2012-04-11 |
| CN102412085B true CN102412085B (en) | 2014-09-10 |
Family
ID=45769080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010292969.2A Active CN102412085B (en) | 2010-09-20 | 2010-09-20 | Double-break electrical contact device and isolating switch using same |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102412085B (en) |
| DE (1) | DE102011078846B4 (en) |
| FR (1) | FR2965094B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377849B (en) * | 2012-04-28 | 2016-08-17 | 西门子公司 | Three-phase combined type isolation earthing switch |
| CN103887094A (en) * | 2014-01-16 | 2014-06-25 | 温州奔一电气有限公司 | PV isolation protection switch assembly |
| CN104952663B (en) * | 2014-03-31 | 2018-01-26 | 西门子公司 | The contact module and disconnecting switch with fuse for disconnecting switch |
| EP2937882B1 (en) * | 2014-04-24 | 2018-09-26 | Siemens Aktiengesellschaft | Switch, in particular circuit breaker |
| CN105336523B (en) * | 2014-06-30 | 2018-03-09 | 西门子公司 | Switching device and its link gear |
| CN105632831A (en) * | 2016-03-29 | 2016-06-01 | 北京赛德高科铁道电气科技有限责任公司 | Earthing switch used inside cabinet |
| CN114446700A (en) * | 2021-12-22 | 2022-05-06 | 平高集团有限公司 | Double-break isolating switch |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3047686A (en) * | 1959-09-25 | 1962-07-31 | Westinghouse Electric Corp | Outdoor disconnecting switch |
| US3859611A (en) * | 1972-10-30 | 1975-01-07 | Hazemeijer Bv | Electric switching apparatus |
| EP0199182A2 (en) * | 1985-04-16 | 1986-10-29 | Efen Elektrotechnische Fabrik GmbH | Switchable block |
| CN201038102Y (en) * | 2007-03-22 | 2008-03-19 | 余谋幸 | Three-phase linkage drop-off type fuse |
| CN201247718Y (en) * | 2008-08-30 | 2009-05-27 | 扬州新菱电器有限公司 | Electric operation type fuse isolation switch electric appliance |
| CN101459011A (en) * | 2007-12-14 | 2009-06-17 | 无锡新宏泰电器有限责任公司 | Fuse body group cover for load isolating switch |
| CN201266568Y (en) * | 2008-09-26 | 2009-07-01 | 日本能源服务株式会社 | Closed type air switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE527965A (en) * | 1953-04-09 | |||
| CH377904A (en) * | 1960-04-22 | 1964-05-31 | Sprecher & Schuh Ag | Isolating switch with switching bridge |
| BE754486A (en) * | 1969-08-16 | 1971-01-18 | Felten & Guilleaume Schaltanl | BRIDGE LOAD DISCONNECTOR |
-
2010
- 2010-09-20 CN CN201010292969.2A patent/CN102412085B/en active Active
-
2011
- 2011-07-08 DE DE102011078846A patent/DE102011078846B4/en active Active
- 2011-07-21 FR FR1102278A patent/FR2965094B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3047686A (en) * | 1959-09-25 | 1962-07-31 | Westinghouse Electric Corp | Outdoor disconnecting switch |
| US3859611A (en) * | 1972-10-30 | 1975-01-07 | Hazemeijer Bv | Electric switching apparatus |
| EP0199182A2 (en) * | 1985-04-16 | 1986-10-29 | Efen Elektrotechnische Fabrik GmbH | Switchable block |
| CN201038102Y (en) * | 2007-03-22 | 2008-03-19 | 余谋幸 | Three-phase linkage drop-off type fuse |
| CN101459011A (en) * | 2007-12-14 | 2009-06-17 | 无锡新宏泰电器有限责任公司 | Fuse body group cover for load isolating switch |
| CN201247718Y (en) * | 2008-08-30 | 2009-05-27 | 扬州新菱电器有限公司 | Electric operation type fuse isolation switch electric appliance |
| CN201266568Y (en) * | 2008-09-26 | 2009-07-01 | 日本能源服务株式会社 | Closed type air switch |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011078846A1 (en) | 2012-03-22 |
| DE102011078846B4 (en) | 2012-09-27 |
| FR2965094B1 (en) | 2018-04-06 |
| CN102412085A (en) | 2012-04-11 |
| FR2965094A1 (en) | 2012-03-23 |
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| C14 | Grant of patent or utility model | ||
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